Methods and systems for enabling a reply call to a voice mail message

ABSTRACT

Methods and systems for enabling a subscriber to reply to a voice mail message that has been made available for the subscriber at a voice mail system (VMS). In response to an indication, the VMS transmits a release message with respect to the subscriber&#39;s communication to the VMS, which communication then is terminated to an intelligent network element (INE). The INE originates a call to the party to whom the subscriber desires to reply. The subscriber&#39;s communication and the INE&#39;s call are bridged to form the reply call from the subscriber to the party. The VMS is not included in the call path. After the reply call is concluded, the bridge is dismantled, the IP is released, and the subscriber&#39;s communication is returned to interaction with the VMS without the subscriber having to make a separate call into the VMS.

RELATED APPLICATION

The present application claims priority to and the benefits of theprior-file co-pending and commonly owned provisional applicationentitled “Method and System for Live Replying to a Voice Mail Message”,filed in the United State Patent and Trademark Office on Feb. 26, 1999,assigned application Ser. No. 60/121,923 and incorporated herein byreference. The present application also claims priority to and thebenefits of the prior-filed copending and commonly owned applicationentitled “Methods and Systems for Enabling a Reply Call to a Voice MailMessage”, filed in the United States Patent and Trademark Office on Feb.25, 2000, assigned application Ser. No. 09/511,864 and incorporatedherein by reference.

FIELD OF THE INVENTION

The present inventions relate to the field of telecommunications, andparticularly, relate to the use of voice messaging systems in anAdvanced Intelligent Network (AIN) of a communications system.

BACKGROUND

A person typically uses a telephone answering machine or a voice mailservice to provide a caller with an opportunity to leave a messageshould the person be unavailable to take the call. On a busy day, anumber of messages may be accumulated and made available for retrieval.As the person goes through the accumulated messages, he or she maysimply listen to some of the messages. With respect to other messages,the person may desire to speak directly to the callers in “live calls tothe callers”. In other words, the person may desire to make a reply callto one of the callers who left the person a message.

There are several different ways in which a person may make a reply callto a caller who left a message. A first way to make a reply call isreferred to herein as “listen-to-all messages”. In this way, the personlistens through all of the messages (taking notes as necessary), andmakes the reply call only after finishing with the accumulated messages.If the person subscribes to a voice mail service, then after theperson's call to the voice mail service to retrieve the messages, theperson places another call so as to make the reply call to the caller ofone of the messages. If the person uses an answering machine, then afterthe last message is played, the person may place a call to make thereply call.

This listen-to-all messages way of making a reply call has at leastthree disadvantages. First, the person has to listen through orotherwise take time with all of his or her messages. The time it takesto get through all of the messages is at least the delay experienced bythe person in making the reply call. Second, the person may have to takenotes (perhaps at least to capture the telephone number of the caller)while going through the messages so as to keep track of which messagesneed a reply, to what directory number to reply, etc. Third, the person,after the reply call has been concluded, may desire to return to themessages or to the voice mail functions. In that case, the caller mayhave to call back into the voice mail system or otherwise access theanswering machine.

This third disadvantage may require a four stage process in the makingof a reply call and getting back to messages or answering machinefunctions: (1) call into the service or run the answering machine; (2)exit the service or terminate the answering machine functions; (3) makethe reply call; and (4) call back into the service or otherwise accessthe answering machine functions.

Another way to make a reply call is referred to herein as the“urgent-reply”. The urgent-reply method may be used to avoid at leastone of the disadvantages of the “listen to all” method in making a replycall. Pursuant to the urgent-reply method, the reply call is made assoon after listening to the relevant message as desired. For example, acaller may have left an urgent message for the person. As soon as theperson gathers the urgency of the message and the relevant call-backinformation, the person may initiate the reply call. This urgent-replymethod may avoid some aspects of the first of the disadvantages of thelisten-to-all method of making a reply call in that the person does nothave to listen to all of the messages before making a reply call.

But like the listen-to-all method, to make the reply call pursuant tothe urgent reply method, the person still has to gather enoughinformation to dial the call, etc. This may involve taking notes. Inaddition, the person may have made the reply call per the urgent-replymethod and missed the remainder of his or her accumulated messages. Inthat case, the person has to call into the voice mail system orotherwise access the answering machine.

Yet another way of making a reply call is referred to herein as“bounce-back”, which is generally available only from advanced voicemail systems. Such an advanced voice mail system requires the person tocall-in for messages, allows a reply call to be made after a particularmessage, and then allows the person to return to the voice mail servicewithout the person having to make another call into the system. Thebounce-back method may be implemented through the use of a platform suchas an intelligent peripheral (IP) that maintains control over theperson's call into the system and over the reply call. One manner inwhich to maintain control is to bridge the person's call into the systemwith the reply call to the caller who left the message. After the replycall is finished, then the bridge may be torn down, and the person mayreturn to a review of messages or other voice mail functions.

But the manner in which bounce-back allows the person to return to thevoice mail service without having to make a separate call into thesystem has drawbacks. Maintaining control over the person's call intothe system and the reply call (by making a bridge or otherwise) has theeffect of including the platform as an element in the call path. Byremaining an element in the call path, the platform takes up resourcesof the telecommunications network. In addition, by remaining an elementin the call path, the platform may limit, if not eliminate, its ownresources to take other calls for the person. Rather than being able totake another call for the person, the platform may be effectively“busy”. Whether the resources that are taken up are those of thetelecommunications network, the platform, or the voice mail service, theresult of the take-up in resources is an increase in cost in at leastoperations of the platform and service.

Accordingly, there is a need for a solution that allows a person to makea reply call to a message left by a caller without the person having tolisten through all of the messages, without the caller having to make acall into the voice mail system or otherwise activate the voice mailservice in order to continue a review of messages or use other featuresof the service after the conclusion of the reply call, and without animplementing device of the voice mail service being included as anelement in the call path while the caller is making the reply call.

SUMMARY

Generally stated, the present inventions relate to methods and systemsfor enabling a subscriber to make a reply call to a voice mail messagethat has been made available for the subscriber at a voice mail system(VMS). More particularly, the methods and systems of the presentinventions enable a subscriber, who has called into the voice mailsystem and retrieved a message, to make a reply call to the originatorof the voice mail message. While the subscriber is making the replycall, the VMS is not included in the call path. After the reply call isconcluded, the subscriber may be returned to interaction with the VMSwithout the subscriber having to make a separate call into the VMS.

Even more particularly, assume a subscriber has indicated a desire tomake a reply call to a voice mail message retrieved from the VMS. Inresponse to the indication, the VMS transmits a message indicating arelease of the subscriber's communication by the VMS. The message mayalso indicate at least a telephone number (reply telephone number) towhich the reply call is to be directed. The message may be or may be apart of a GR-1129 message, and the message may include a RemoteOperations (RO) parameter with information related to the reply callsuch as the reply telephone number, an identifier for implementation ofa reply call, and/or the subscriber's directory number. The releasemessage effectively removes the VMS from further involvement with thesubscriber's communication or with the reply call (at least until thereply call is disconnected and the subscriber's communication isreconnected to the VMS).

The message from the VMS may be received by the service switching point(SSP) serving the VMS (SSP of VMS), which in turn, routes the message(or the information from the message) to a service control point (SCP).In response, the SCP directs the SSP of VMS to route the communicationto the subscriber's directory number. A reason for first routing thecommunication to the subscriber's directory number is to have thecommunication appear as if it is being made from a line corresponding tothe subscriber's directory number. The communication is to appear as ifit is being made from the subscriber's directory number for purposes ofcreating a billing record billing the subscriber, who has elected tomake a reply call to a voice mail message.

In the course of routing the subscriber's communication to thesubscriber's directory number, the communication is routed to the SSPserving the subscriber's directory number (subscriber's SSP). Thesubscriber's SSP pauses in the processing of the communication andqueries the SCP for instructions. The SCP then instructs thesubscriber's SSP to route the communication for termination to anintelligent network element (INE) such as an intelligent peripheral(IP). The INE is provided with the reply telephone number.

In response to the termination of the subscriber's communication to theINE, the INE initiates a call to the reply telephone number. The INEalso bridges the subscriber's communication and the INE's call to formthe reply call. As a result of the bridge between the subscriber'scommunication and the INE's call, the subscriber is provided with areply call to the reply telephone number. Advantageously, the VMS is notinvolved in this reply call from the subscriber through to the replynumber. The release of the VMS from the subscriber's communication freesup the VMS for other calls, reduces use of the infrastructure of thecommunications network by obviating the connections of the subscriber'scommunication to the VMS, and otherwise improves the efficiency ofprocessing the reply call.

Another advantage of the present inventions is that they provide methodsand systems to connect the subscriber to the VMS for the interactionwith the VMS after disconnection of the reply call without thesubscriber having to make a separate call into the VMS.

Generally, to connect the subscriber for interaction again with the VMS,the reply call is monitored for a disconnect signal such as a disconnectevent, the input of particular digits, or the like. The bridge betweenthe subscriber's communication and the INE's call is dismantled so as todisconnect the INE's call to the reply telephone number. Instructionsmay be obtained with respect to the subscriber's communication so thesubscriber's communication is routed to the VMS without the subscriberhaving to call back into the VMS.

More particularly, the INE, which includes the bridge between thesubscriber's communication and the INE's call to form the reply call,monitors the reply call for a disconnect signal. In response to thedisconnect signal, the INE dismantles the bridge so as to disconnect theINE's call to the reply telephone number. The INE may provide a releasemessage to the SSP serving the INE so as to indicate the INE'swithdrawal or release from usage with respect to the subscriber'scommunication. The SSP serving the INE may obtain instructions withrespect to the subscriber's communication. The subscriber'scommunication is transmitted by the SSP serving the INE to the VMS. As aresult of the disconnection of the INE's call and the INE's release fromthe subscriber's communication, the communication is available forconnection for interaction with the VMS. Advantageously, the subscriberdoes not have to make a call back into the VMS to continue to interactwith the VMS, but the subscriber may simply hang on after disconnectionof the reply call to be routed back to the VMS.

That the present inventions and the exemplary embodiments accomplish thefeatures of the present inventions will become apparent from thedetailed description of the exemplary embodiments and the drawings thatfollow.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a block diagram of an exemplary messaging system such as aregion-wide messaging system that may be used in connection with thepresent inventions.

FIG. 2 is a block diagram illustrating the exemplary routing of acommunication from a subscriber to a VMS to retrieve a voice mailmessage.

FIG. 3 is a block diagram illustrating an exemplary reply call from thesubscriber to the reply telephone number without the involvement of theVMS in the reply call.

FIG. 4 is a block diagram illustrating an exemplary connection of thesubscriber's communication for interaction with the VMS after thedisconnection of the reply call and without the subscriber having tocall back into the VMS.

DETAILED DESCRIPTION

The exemplary embodiments of the present inventions provide methods andsystems for enabling a subscriber to make a reply call to a voice mailmessage that has been made available for the subscriber at a voice mailsystem (VMS). More particularly, the methods and systems of the presentinventions enable a subscriber, who has called into the voice mailsystem and retrieved a message, to make a reply call to the originatorof the voice mail message. After the reply call is concluded, thesubscriber may be returned to interaction with the VMS without thesubscriber having to make another call into the VMS.

Exemplary Environment for Exemplary Embodiments

The exemplary embodiments of the present inventions are used,preferably, with a region-wide messaging (RWM) system, as described ingreater detail below. Nevertheless, the present inventions may be usedwith any type of messaging system with the appropriate functionality.

The RWM system described herein may allow a subscriber to the messagingsystem within the region of the service provider to send, receive,forward, and reply to messages, including voice mail messages and VoiceProfile for Internet Mail (VPIM) Messages. Subscribers may receivemessages from other subscribers and non-subscribers.Subscriber-to-subscriber messaging, however, illustrates the advancedfeatures of the RWM system, which may be available, such as: (1) eachsubscriber may send a message to another subscriber; (2) each subscribermay reply to a message received from another subscriber; (3) eachsubscriber may reply to a telephone message received from anon-subscriber by implementing a feature that dials the non-subscriber;and (4) each subscriber may receive and reply to Internet voice messagesor fax messages.

Exemplary RWM System—FIG. 1

FIG. 1 is a block diagram of an exemplary RWM system 10 (also referredto as a telecommunications messaging network). The network 10 includes avariety of interconnected network elements. A group of such elementsincludes the plurality of end offices which are indicated as serviceswitching points (SSPs or switches) 12 a, 12 b, 12 c. An SSP typicallyincludes switch functionality, but also includes other functionality soas to communicate with other network elements, and in particular, withAdvanced Intelligent Network (AIN) elements. SSP 12 a and SSP 12 c areeach coupled to a subscriber line, which also may be referred to as aline or a calling line. Each SSP 12 a, 12 b, 12 c serves a designatedgroup of lines, and thus, the SSP that serves a particular line may bereferred to as its serving switch. The line is typically connected to apiece of terminating equipment including telephones 14, 38. Althoughtelephones 14, 38 are illustrated as the terminating equipment, thoseskilled in the art will understand that such terminating equipment mayinclude other telecommunications devices including, but not limited to,facsimile machines, computers, modems, etc. End offices may further becoupled through a tandem office (not illustrated), which may be used toconnect and switch circuits between and among end offices.

Each active line in an AIN is assigned a ten digit (NPA-NXX-XXXX) linenumber regardless of whether seven or ten digits are dialed to reach thesubscriber. A line number is commonly referred to as a telephone numberor a directory number.

SSP 12 b is connected by trunks to a voice mail system (VMS) (messagingplatform) 15. (These trunks use Signaling System 7 signals for callset-up and other actions.) SSP 12 c is connected by trunks to a voicemail system (VMS) (messaging platform) 17.

SSPs 12 a, 12 b, 12 c are interconnected by a plurality of trunkcircuits 18. These are the voice path trunks that connect the SSPs toconnect communications. In addition to connections to other elements,each of the SSPs is connected to a local signal transfer point (STP) 20via respective data links. Currently, these data links employ asignaling protocol referred to as Signaling System 7 (SS7). Much of theintelligence of the AIN resides in a service control point (SCP) 22 thatis connected to STP 20 over an SS7 data link. Among the functionsperformed by the SCP 22 is the maintenance of network databases andsubscriber databases as represented collectively by databases(subscriber data) 24. The system 10 also may include intelligent networkelements (INEs) such as the INE 39 illustrated as connected to SSP 12 c.An INE may be an intelligent peripheral (IP) such as a service node (SN)(sometimes referred to as a service circuit node). An INE may includevoice and dual tone multi-frequency (DTMF) signal recognition devicesand voice synthesis devices. The INE 39 may be connected to the SSP 12 cthrough a data link using an X.25 or other protocol and typically may beconnected to one or more SSPs via an integrated service Digital Network(ISDN) links.

In order to keep the processing of data and calls as simple as possible,a relatively small set of triggers is defined at the SSPs for each call.A trigger in the AIN is an event associated with a particular call thatgenerates a packet to be sent to an SCP. The SCP queries its databasesor service package applications (SPAs) for processing instructions withrespect to the particular call. The results are sent back to the SSP ina response from the SCP 22 through STP 20. The return packet includesinstructions to the SSP as to how to process the call. The instructionsmay be to take some special action as a result of a customized callingservice or an enhanced feature. In response to the instructions, the SSPmoves through the remaining call states, may encounter further triggers,and generates further packets that are used to set up and route thecall. Similar devices for routing calls among various local exchangecarriers are provided by regional STP (not illustrated) and by regionalSCP (not illustrated) which may be connected to STP 20, SCP 22, and/orto the elements described herein through the public switched telephonenetwork (PSTN) 26.

When a messaging subscriber (such as the person or entity usingtelephone 14) subscribes to a messaging service, an entry or a record iscreated in a VMS such as VMS 15. Each VMS 15, 17 includes subscriberadministration, message retrieval, send, reply, forward, and mailboxmaintenance functions, among others. Each VMS 15, 17 includes or isfunctionally connected respectively to a subscriber profile database 28,30 (subscriber data). Each subscriber profile database storessubscriber-specific profile information (subscriber information) forretrieval by VMS functions. The VMSs 15, 17 are elements of themessaging system or service. To the protected TCP/IP network(s) 32described below, each of the messaging platforms 15, 17 look like avalid TCP/IP element. In support of this, the VMSs 15, 17 may beassigned a TCP/IP (or IP) address and/or a domain name. Generally, theTCP/IP or other address or domain name of the VMS 15, 17 may be storedin a region-wide messaging directory (RMD) 25 discussed below, or may bestored on some domain name server (not illustrated) either in theprotected TCP/IP network(s) 32, in some other element, or as a separateelement. In further support of this TCP/IP capability, the VMSs 15, 17may also provide operations access to mail administrative destinations,in addition to subscriber messaging mailbox destinations. In addition,each VMS 15 or 17 is an SS7 network element and as such is assigned anidentifier such as a directory number, a destination point code (DPC) orthe like.

The VMSs 15, 17 communicate with the SSP and the SCP according to theAIN 0.2 Switch—Intelligent Peripheral Interface GenericRequirements—1129-CORE Specification, AINGR: Switch—IntelligentPeripheral Interface (IPI) (A module of AINGR, FR-15); Document Number:GR-1129; Issue Number: 03; Updates: REV01—October 1998; Issue Date:September 1997; Product Type: Industry Requirements and Standards (RS);Component of FR-15, (“GR-1129”) which is incorporated herein byreference. This GR-1129 describes the use of a Remote Operations (RO)parameter for indicating the invocation of a supplementary service. TheRO parameter may be used to allow the SCP 22 and the VMSs 15, 17 toshare information.

In this messaging service, TCP/IP messaging is allowed via a privateTransmission Control Protocol/Internet Protocol (TCP/IP) network(protected TCP/IP network(s)) 32. The VMSs 15, 17 through the network 32may use a Light-weight Directory Access Protocol (LDAP) to communicatewith other elements such as a domain name server (not illustrated)and/or directories such as RMD 25 to obtain information with respect tothe proper destination/recipient of a message.

An Internet gateway 34 provides secure access between the private TCP/IPnetwork 32 and the Internet 36. The gateway 34 limits the access of VPIMtraffic to and from the Internet 36. In addition, the gateway 34performs authorized LDAP messaging directory lookups to route messagesreceived from the Internet 36.

Advantageously, a subscriber's line number generally may be thesubscriber's mailbox number associated with a messaging platformrendering service to the subscriber in the RWM system. In other words, amessage addressed to the subscriber may include the subscriber's linenumber, which may also be the subscriber's mailbox number.Alternatively, the subscriber's mailbox number may relate to some otheridentifier associated with the subscriber. The subscriber's address maybe based on the ten digit directory number (DN) using an InternationalTelecommunications Union (ITV) Standard E.164 compliant address.

FIG. 1 also illustrates the exemplary use of a region-wide messagingdirectory 25 (RMD or directory) in the messaging system 10. The RMD 25is functionally connected to the other elements of the messaging system10 through inclusion in or a connection to the TCP/IP network 32.Although the RMD 25 is illustrated as connected to the system 10 throughthe TCP/IP network 32, the RMD 25, or course, may be connected to thesystem 10 in other ways or even be included in an element of the systemsuch as in association with the directories 24 of SCP 22. An RMDprovides high-speed directory look-up for messaging subscribers.Generally, an RMD stores information so as to determine which messagingplatform of the RWM system serves which subscriber. Additionalinformation on the manner in which the RMDs of the messaging system 10store information on messaging platforms and subscribers and how RMDsinteract with a network element 51 may be obtained from the commonlyassigned and owned patent application entitled “Methods and System forDetermining Message Routing Based on Elements of a Directory Number”,which was filed with the United States Patent and Trademark Office onDec. 13, 1999 and assigned Ser. No. 09/459,498, and which was filed withthe United States Receiving Office pursuant to the Patent CooperationTreaty (PCT) on Dec. 13, 1999 and assigned Application No.PCT/US99/29491 and which application is herein by reference.

Of course, an RMD may keep track of other information relating tosubscribers of the RWM system. In particular, the RMD may act as both aclient and a server with respect to the Light-weight Directory AccessProtocol (LDAP). The RMD stores subscriber, service, and other messagingdata. In addition, the RMD supports the LDAP attributes field for LDAPclients to choose the fields that they desire to retrieve from theserver. Clients may retrieve the subscriber profile from the RMD.

Subscriber data may be stored in the RMD in the following exemplaryfashion:

Description/Directory Field LDAP DN Attribute Subscriber's MailboxNumber CN (Common Name) Name Announcement Spoken Name MDSBlocking N/A

Subscriber data is used to look up subscribers in the RMD. The data isalso used for the purposes of routing and billing a subscriber's callsand messages to and from the messaging platforms.

Service data may be stored in the RMD in the following exemplaryfashion:

Description/Directory Field LDAP DN Attribute VMS ID VMSID VMS DAPNumber VMSDN VMS Domain Domain VoiceEncoding N/A LATA N/A State N/AStateLATA N/A LDAP Credentials Hidden in LDAP query VMS IP addressHidden in LDAP query

The service data contains messaging platform-specific information toperform certain checks during directory look-up and call/messagerouting. The RMD may also store service provider data to ensure that aservice provider has access to only its authorized subscribers'information.

Subscriber's Retrieval of a Message—FIG. 2

Generally stated, the present inventions relate to methods and systemsfor enabling a subscriber to make a reply call to a voice mail messagethat has been made available for the subscriber at a voice mail system(VMS).

FIG. 2 is a block diagram illustrating the exemplary routing of acommunication from a subscriber to an exemplary VMS to retrieve a voicemail message. Solid arrows and cross-hatched arrows in the figuresillustrate the call path of a communication. Dashed arrows illustratethe paths between or among elements in the exchange of data or controlsignals.

Subscriber 40 dials a “pilot” or “administration” number, which also maybe referred to as a messaging access telephone number. As indicated bysolid arrow A, the subscriber's communication is routed to the serviceswitching point serving the subscriber (“subscriber's SSP”) 42. Asindicated by solid arrow B, the subscriber's SSP routes the subscriber'scommunication to the SSP serving the VMS (“SSP of the VMS”) 44. Thecommunication encounters a specific digits string (“SDS”) triggerprovisioned on the SSP of the VMS 44 with respect to the pilot number.The SDS trigger causes the SSP of the VMS 44 to launch a TCAPInfo_Analyzed query including the called number and the calling numberto an SCP 46 as indicated by dashed arrow C.

In response to receipt of the query, the SCP 46 accesses a table (orother data source) to determine instructions for further routing of thecall. In particular, the SCP 46 uses the called number in the query todetermine the address of the voice mail system (VMS) 48 for routing ofthe subscriber's communication. As indicated by dashed arrow D, the SCP46, using a TCAP STR-IP message including a destination address for theVMS, instructs the SSP of the VMS 44 to route the call to the VMS 48. Asindicated by solid arrow E, the SSP of the VMS 44 routes thesubscriber's communication to the VMS 48. The SSP of the VMS 44 uses anISUP IAM message including the directory number of the VMS 48 as thecalled number, and the directory number of the subscriber as the callingnumber. The VMS uses the calling number (i.e., the subscriber'sdirectory number) to access the subscriber's voice mailbox and to makeany message therein available to the subscriber.

Thus, the call path of the subscriber's communication to retrieve his orher voice mail messages from the VMS 48 is illustrated by the solidarrows A, B, and E of FIG. 2. In particular, the call path is from: thesubscriber's equipment 40 to the subscriber's SSP 42 (arrow A); thesubscriber's SSP 42 to the SSP of the VMS 44 (arrow B); and then the SSPof the VMS 44 to the VMS 48 (arrow E).

Exemplary Reply Call—FIG. 3

FIG. 3 is a block diagram illustrating an exemplary reply call from thesubscriber to the reply telephone number without the involvement of theVMS in the reply call. Assume for this example that the subscriber hasdecided to make a reply call (a “live call”) to a called party who lefthim or her a voice mail message. To indicate that the subscriber desiresto make a reply call to a particular voice mail message, he or sheprovides some indication to the VMS 48 such as the input of a particularcode. Generally, the code may be input by the subscriber while thesubscriber is listening or reviewing the particular message, or afterthe end of the particular message. The subscriber may input this codeand make a reply call to a message even though other messages areawaiting review by the subscriber. In sum, the subscriber does not haveto wait until all of the messages have been reviewed or otherwise reachthe end of the accumulated messages in order to make a reply call to aparticular message.

Assume the subscriber desires to make a reply call to a particularmessage, but fails to provide his or her indication with respect tomaking a reply call to a particular message while reviewing or at theend of the particular message. Then the subscriber may have to providethe VMS 48 with some information to identify the particular message towhich the subscriber desires to make a reply call. For example, assumethe subscriber reviews all of his or her ten messages, and decides tomake a reply call to the third message. The subscriber may provide theVMS 48 with the information that he or she desires to make a reply callwith respect to the third message.

The VMS 48 notes the receipt of the indication [AudioDTMF[nn]] that thesubscriber desires to make a reply call to a message. In response, asindicated by dashed arrow F, the VMS 48 sends an ISUP Release (ISUP REL)message to the SSP of the VMS 44. The message is a release of thesubscriber's communication by the VMS 44. The message may be a GR-1129message and may include a remote operations (RO) parameter with threefields: (1) an identifier for implementation of a reply call (which maybe characterized as an identifier of an operation type and abbreviatedas “OperType”); (2) a destination number (DestNumber) for the reply callwhich may be referred to as the reply telephone number (which may beincluded by the VMS as taken from the information associated with themessage to which the subscriber is making the reply call); and (3) asubscriber number that identifies the subscriber with respect to his orher mailbox and/or for billing purposes. The release message effectivelyremoves the VMS 48 from further involvement with the subscriber'scommunication or with the reply call (at least until the reply call isdisconnected and the subscriber's communication is transmitted to theVMS).

The message from the VMS 48 is received by the SSP of the VMS 44, which,in turn, transmits a TCAP Resource_Clear (TCAPResClear) message to theSCP 46 as indicated by dashed arrow G. The message from the SSP of theVMS 44 to the SCP 46 may include the message from the VMS 48 or therelevant parts thereof such as the RO parameter including identificationof the operation to be implemented (i.e., reply call), the replytelephone number, and the subscriber's directory number.

In response to receipt of the message from the SSP of the VMS 44, theSCP 46 analyzes the message and determines that an operation is to beimplemented with respect to the subscriber's communication. In thisexample, the operation to be implemented is a reply call and the replycall is to be made to the called party number. Accordingly, the SCP 46,as indicated by dashed arrow H, sends a TCAP Analyze_Route (TCAPAnaIRte)message to the SSP of the VMS 44, which instructs the SSP of the VMS 44to route the subscriber's communication to the subscriber's directorynumber. The message from the SCP 46 sets the called number to thesubscriber's directory number. The SCP 46 also includes at least thereply telephone number (for example, as the redirecting number) and mayinclude the other information from the RO parameter in its message tothe SSP of the VMS 44.

As noted, the SCP 46 directs the SSP of the VMS 44 to route thesubscriber's communication to the subscriber's directory number. Areason for first routing the communication to the subscriber's directorynumber is to have the communication appear as if it is being made from aline corresponding to the subscriber's directory number. Thecommunication is to appear as if it is being made from the subscriber'sdirectory number for purposes of creating a billing record billing thesubscriber, who has elected to make a reply call to a voice mailmessage. Of course, if there is no reason to route the communicationfirst to the subscriber's directory number, then the communication maybe routed directly to the reply telephone number.

The SSP of the VMS 44 uses an ISUP message in routing the communicationto the subscriber's directory number. In the course of the routing, thecommunication is directed to the SSP serving the subscriber's directorynumber (subscriber's SSP) 42, where a termination attempt (TAT) triggeris encountered with respect to the subscriber's directory number. Thesubscriber's SSP 42 pauses in the processing of the communication andqueries the SCP 46 for instructions by using a TCAP termination attempt(TCAP TermAttempt) message. The message from the subscriber's SSP 42 mayinclude the message or the relevant information from the message (i.e.,the RO parameter information) relating to the reply call such asprovided by the VMS 48 and including an identifier for the operation tobe implemented, the reply telephone number, and the subscriber'sdirectory number. The transmission of the query from the subscriber'sSSP 42 to the SCP 46 is illustrated in FIG. 3 by the dashed arrow J.

The SCP 46 examines the information received in the TCAP TermAttemptmessage, and determines that the communication is an outdial call. TheSCP 46 then uses a TCAP Forward_Call message, as indicated by dashedarrow K, to instruct the subscriber's SSP 42 to route the communicationfor termination to an intelligent network element (INE) such as anintelligent peripheral (IP) 52. As indicated by solid arrow L, thesubscriber's SSP 42 routes the subscriber's communication to the SSP ofthe IP 50. The subscriber's SSP 42 uses an ISUP IAM message with thecalled number as the directory number of the IP 52 and including theinformation of the RO parameter. As indicated by solid arrow M, the SSPof the IP 50 then terminates the subscriber's communication to the IP52. The SSP of the IP 50 uses a PRI Setup message and includes theinformation of the RO parameter.

At this point in the implementation of the reply call to the message asindicated by the subscriber, the call path of the subscriber'scommunication does not include the VMS 48. In particular, at this point,the call path is illustrated in FIG. 3 as from: the subscriber'sequipment 40 to the subscriber's SSP 42 (arrow A); the subscriber's SSP42 to the SSP of the IP 50 (arrow L); and the SSP of the IP 50 to the IP52 (arrow M). (In some cases, the call path also may include the SSP ofthe VMS 44).

In response to the termination of the subscriber's communication to theIP 52, the IP 52 initiates a call to the reply telephone number (“IP'scall”). The IP's call is initially routed from the IP 52 to the SSP ofthe IP 50 as indicated by cross-hatched arrow N and uses a PRI Setupmessage. From the SSP of the IP 50, the IP's call is routed, asillustrated by cross-hatched arrow 0, to the SSP serving the replytelephone number (“called party's SSP”) 54. The called party's SSP 54further routes the IP's call to the equipment of the called party 56 asindicated by cross-hatched arrow P. Thus, the call path of the IP's callis from: the IP 52 to the SSP of the IP 50 (arrow N); the SSP of the IP50 to the called party's SSP 54 (arrow O); and the called party's SSP 54to the called party 56 (arrow P).

In addition, the IP 52 connects or merges the subscriber's communicationand the IP's call such as by making a bridge 58, or otherwise, to formthe reply call. As a result of the bridge 58 between the subscriber'scommunication and the IP's call, the subscriber is provided with a replycall to the reply telephone number.

Advantageously, the VMS 48 is not involved in this reply call from thesubscriber through to the reply number. The release of the VMS 48 fromthe subscriber's communication frees up the VMS 48 for other calls,reduces use of the infrastructure of the communications network byobviating the connections of the subscriber's communication to the VMS48, and otherwise improves the efficiency of processing the reply call.

Exemplary Connection for Interaction with the VMS—FIG. 4

An advantage of the present inventions is that they provide methods andsystems to connect the subscriber to the VMS 48 for interaction with theVMS 48 after disconnection of the reply call without the subscriberhaving to make a separate call into the VMS.

Generally, to connect the subscriber for interaction (after a replycall) with the VMS 48, the reply call is monitored by the IP 52 for adisconnect signal such as a disconnect event, the input of particulardigits, or the like [AudioDTMF “*”]. In response to a disconnect signal,the IP 52 disconnects the called party 56 so as to disconnect the IP'scall. The bridge between the subscriber's communication and the IP'scall is dismantled so that only the subscriber's communication remains.The IP 52 releases the subscriber's communication, which is then routedto the VMS 48.

FIG. 4 illustrates the exemplary environment of FIG. 3, but after the IP52 has received a disconnect signal, has disconnected the called party,and only the subscriber's communication remains. Unlike FIG. 3, there isno call path from the IP 52 to the SSP of the IP 50, nor a call pathfrom the SSP of the IP 50 to the called party's SSP 54, and no call pathfrom the called party's SSP 54 to the called party 56.

Once the IP 52 disconnects the IP's call, the IP 52 sends an ISUPRelease (ISUP) message to the SSP of the IP 50. The SSP of the IP 50obtains instructions in a query/response exchange with the SCP 46 withrespect to the subscriber's communication (dashed arrows Q and R). Inparticular, the subscriber's communication is processed so as to routethe communication to the VMS 48 without the subscriber having to callback into the VMS.

The subscriber's communication is routed by the SSP of the IP 50 to thedirectory number of the VMS 48. Solid arrow S from the subscriber's SSP42 to the SSP of the VMS 44 and solid arrow T from the SSP of the VMS 44to the VMS 48 (as well as arrow A from the subscriber 40 to thesubscriber's SSP 42) illustrate that the call path of the subscriber'scommunication has been returned to that illustrated by arrows A, B, andE of FIG. 2 when the subscriber 40 was in communication with the VMS 48.Advantageously, the subscriber does not have to make a call back intothe VMS 48 to continue to interact with the VMS 48, but the subscribermay simply hang on after disconnection of the reply call to be routedback to the VMS 48.

Conclusion

From the foregoing description of the exemplary embodiments of thepresent inventions and operations thereof, other embodiments willsuggest themselves to those skilled in the art. Therefore, the scope ofthe present invention is to be limited only by the claims below andequivalents thereof.

1. A method to connect a subscriber to a voice mail system (VMS) afterdisconnection of a reply call to a reply telephone number, the methodcomprising: monitoring the reply call replying to a voice mail messageleft on the VMS for a disconnect signal, the reply call being formed bya subscriber communication that originates with the subscriber andterminates with an intelligent network element (INE) bridged to a callto the reply telephone number; and in response to the disconnect signal,dismantling the bridge so as to disconnect the reply call to the replytelephone number, sending an integrated services digital network (ISDN)user part (ISUP) message to a service switching point (SSP) to obtaininstructions in an exchange with a service control point (SCP), androuting the subscriber communication from the INE to the VMS, wherebythe subscriber may be connected with the VMS after the disconnection ofthe reply call to the reply telephone number.
 2. The method of claim 1,further comprising: prior to routing the subscriber communication to theVMS, obtaining instructions with respect to the subscriber'scommunication, and following the instructions in routing the subscribercommunication to the VMS.
 3. The method of claim 1, wherein the replycall to the reply telephone number is monitored for the disconnectsignal.
 4. The method of claim 2, wherein the instructions with respectto the subscriber communication are obtained from the subscriber.
 5. Themethod of claim 1, wherein the reply call is monitored for input ofparticular digits.
 6. A system to connect a subscriber to a voice mailserver (VMS) after disconnection of a reply call to a reply telephonenumber, the system comprising: an intelligent network element (INE)operative to monitor the reply call replying to a voice mail messageleft on the VMS for a disconnect signal, the reply call being formed bya subscriber communication originating with the subscriber andterminating with the INE bridged to the reply telephone number, and inresponse to the disconnect signal, to dismantle the bridge so as todisconnect the reply call to the reply telephone number; and a serviceswitching point (SSP) serving the INE, the SSP being operative to routethe subscriber communication from the INE to the VMS, where thesubscriber may be connected with the VMS at the disconnection of thereply call, and where in response to dismantling the bridge, anintegrated services digital network (ISDN) user part (ISUP) message issent to the SSP to obtain instructions in an exchange with a servicecontrol point (SCP).
 7. The system of claim 6, further comprising: aservice control point (SCP); and wherein the SSP is operative, prior torouting the subscriber communication to the VMS, to obtain instructionswith respect to the subscriber communication, and following theinstructions in routing the subscriber communication to the VMS.
 8. Amethod to connect a subscriber to a voice mail server (VMS) afterdisconnection of a reply call to a reply telephone number, the methodcomprising: receiving a message with respect to the disconnection of thereply call to the reply telephone number, the reply call replying to avoice mail message left on the VMS, the reply call being formed by asubscriber communication originating with the subscriber and terminatingwith an intelligent network element (INE) bridged to the reply telephonenumber; and in response to receiving the message, causing the subscribercommunication to be routed from the INE to the VMS so that thesubscriber communication follows a path from the subscriber to the VMS,where in response to disconnection of the reply call, an integratedservices digital network (ISDN) user part (ISUP) message is sent to aservice switching point (SSP) to obtain instructions in an exchange witha service control point (SCP).